1 //===----------------------------------------------------------------------===//
3 // The LLVM Compiler Infrastructure
5 // This file is dual licensed under the MIT and the University of Illinois Open
6 // Source Licenses. See LICENSE.TXT for details.
8 //===----------------------------------------------------------------------===//
12 // constexpr const_iterator end() const;
14 #include <experimental/string_view>
18 #include "test_macros.h"
25 typename S::iterator e = s.end();
26 typename S::const_iterator ce1 = cs.end();
27 typename S::const_iterator ce2 = s.cend();
31 assert( e == s.begin());
32 assert(ce1 == cs.begin());
33 assert(ce2 == s.begin());
37 assert( e != s.begin());
38 assert(ce1 != cs.begin());
39 assert(ce2 != s.begin());
42 assert( e - s.begin() == static_cast<std::ptrdiff_t>(s.size()));
43 assert(ce1 - cs.begin() == static_cast<std::ptrdiff_t>(cs.size()));
44 assert(ce2 - s.cbegin() == static_cast<std::ptrdiff_t>(s.size()));
54 typedef std::experimental::string_view string_view;
55 typedef std::experimental::u16string_view u16string_view;
56 typedef std::experimental::u32string_view u32string_view;
57 typedef std::experimental::wstring_view wstring_view;
60 test(u16string_view());
61 test(u32string_view());
62 test(wstring_view ());
63 test(string_view ( "123"));
64 test(wstring_view (L"123"));
65 #if TEST_STD_VER >= 11
66 test(u16string_view{u"123"});
67 test(u32string_view{U"123"});
72 constexpr string_view sv { "123", 3 };
73 constexpr u16string_view u16sv {u"123", 3 };
74 constexpr u32string_view u32sv {U"123", 3 };
75 constexpr wstring_view wsv {L"123", 3 };
77 static_assert ( sv.begin() != sv.end(), "" );
78 static_assert ( u16sv.begin() != u16sv.end(), "" );
79 static_assert ( u32sv.begin() != u32sv.end(), "" );
80 static_assert ( wsv.begin() != wsv.end(), "" );
82 static_assert ( sv.begin() != sv.cend(), "" );
83 static_assert ( u16sv.begin() != u16sv.cend(), "" );
84 static_assert ( u32sv.begin() != u32sv.cend(), "" );
85 static_assert ( wsv.begin() != wsv.cend(), "" );